SOME PHYSICAL MEASUREMENTS IN THE ONE-PHASE REGION OF A WATER DEXTRAN POLY(ETHYLENE GLYCOL) SYSTEM

被引：12

作者：

JOHANSSON, G ^{[1
]}

JOELSSON, M ^{[1
]}

BASTOS, M ^{[1
]}

机构：

[1] UNIV LUND,DEPT THERMOCHEM,S-22100 LUND,SWEDEN

来源：

POLYMER | 1992年 / 33卷 / 01期

关键词：

PHASE TRANSITION; AQUEOUS LIQUID LIQUID SYSTEM; LIGHT SCATTERING; VISCOSITY; HEAT CAPACITY; DENSITY;

D O I：

10.1016/0032-3861(92)90575-H

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Concentration-dependent phase separation into two polymer-containing liquid phases has been studied for the polymer pair poly(ethylene glycol) and dextran. Below the point of phase separation, the light scattering of polymer mixtures was considerably greater than for single polymers in solution. Also the viscosity of polymer mixtures was larger than the sum of the viscosity increments of polymer solutions. On the other hand, both heat capacity and density were additive in the one-phase region. The possible solvent structure in mixed polymer solutions is discussed.

引用

页码：152 / 155

页数：4

共 22 条

[1]

Albertsson P., 1986, PARTITION CELL PARTI

[2] CALORIMETRIC STUDY OF BINARY-SYSTEMS OF TETRAETHYLENEGLYCOL OCTYLETHER AND POLYETHYLENEGLYCOL WITH WATER [J].